I want to glide at roughly constant speed for some distance. Some mild breaking is fine. I cant glide if I let off the accelerator, then I come to a fairly firm stop.

I want my right foot on the break pedal, ready to brake hard and fast in the rare case that something comes across the road.

I don't want to reduce speed any further than is necessary to have a safe breaking distance at fully ready state.

With any other car (that I have driven) than the Tesla, I can approach a situation like this at between 20kmh and 40kmh, depending on the specifics. In the Tesla I need to go at between 5 and 10kmh.

Ah OK, I see what you mean. Yeah, on my car, that's a setting I can toggle.

regenerative braking can be uncomfortable for passengers as the car is constantly alternating between accelerating (or constant speed) and braking. It isn't even light braking, it is significant braking.

I generally turn off the auto regen braking because i find it uncomfortable.

Importantly, regenerative braking is a danger on icy roads. I disable it entirely in the winter in eastern Canada because it often causes the tires to lose grip.

There must be some connection between traction control and regen braking in newer Teslas, because I didn't really have any problems with it during the past winter. A friend working in auto industry was involved with doing competitor analysis and was shocked back in 2014 or something like that, the Teslas they tested simply spun out of control when letting go of the accelerator in slippery conditions.

They didn't care much for convential wisdom and car building competence in the early days of Tesla.

I agree about the icy roads, but for the braking, that's easily remedied by just not completely releasing the accelerator. I just modulate how much I want to brake with the accelerator pedal.